Home / 8,470.47-11,688.80-4,884.60

Finding the Fourth Proportional to 8,470.47, 11,688.80 and 4,884.60

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Solution

The fourth proportional to 8,470.47, 11,688.80 and 4,884.60 is: 6,740.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,470.47 : 11,688.80 = 4,884.60 : x
  2. Step 2: Convert to fraction form
    8,470.47/11,688.80 = 4,884.60/x
  3. Step 3: Cross multiply
    8,470.47x = 11,688.80 × 4,884.60
  4. Step 4: Simplify right side
    8,470.47x = 57,095,088.06
  5. Step 5: Solve for x
    x = 57,095,088.06/8,470.47
  6. Step 6: Final answer
    x = 6,740.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.